Table 1. NaCl Minimal Inhibitory Concentration (MIC), Minimal Bactericidal Concentration (MBC) and Killing quotient (KQ) distributions for the 85 CF isolates and the 4 reference strains of P. aeruginosa.
| NaCl MIC values (in %) | ||||||||||||
| Agar dilution method | Broth dilution method | NaCl MBC values (in %) | Killing quotient (KQ)a | |||||||||
| Strains or isolates (n) | MIC50 | MIC90 | Range | MIC50 | MIC90 | Range | MBC50 | MBC90 | Range | KQ50 | KQ90 | Range |
| All strains (n = 89) | 4 | 5 | 2–6 | 5 | 6 | 0.9–6 | 8 | 10 | 4->10 | 1.8 | 2.7 | 1.2–7.8 |
| Reference strains (n = 4) | 5 | 5 | 5 | 5 | 6 | 5–6 | 7 | 9 | 7–9 | 1.4 | 1.6 | 1.4–1.6 |
| CF isolates (n = 85) | 4 | 5 | 2–6 | 4 | 6 | 0.9–6 | 8 | 10 | 4->10 | 1.8 | 3 | 1.2–7.8 |
MIC50 and MIC90 values were defined as the lowest concentration of NaCl at which 50% and 90% of the isolates were inhibited, respectively.
a
Only isolates exhibiting MBC values within tested range were considered.